Wave Type Switch; Level; Sensitivity - Fender Bubbler Chorus User Manual

Rate 1
While the Slow speed is selected, the Rate 1 control adjusts the speed
of the modulation.
Rate 1 LED
This LED is illuminated when the Slow Speed is engaged. Rate 1 and
Rate 2 are active when this LED is on.
Depth 1
While the Slow speed is selected, the Depth 1 control adjusts the
intensity of the chorus.
Center LED (LED between Depth 1 and Rate 2)
This LED blinks in time with the rate of the Bubbler.
Rate 2
While the Fast speed is selected, the Rate 1 control adjusts the speed of
the modulation.
Rate 2 LED
This LED is illuminated when the Fast Speed is engaged. Rate 1 and
Rate 2 are active when this LED is on.
Depth 2
While the Fast speed is selected, the Depth 1 control adjusts the
intensity of the chorus.

Level

The Level control adjusts the amount of the chorused signal added to
your instrument's dry signal.

Wave Type Switch

This switch allows you to toggle between sine and triangle shaped
modulation.

Sensitivity

When the Slow mode is engaged, the Sensitivity control adjusts the
threshold for the Bubbler's dynamically controlled rate. As the Sensitivity
is turned clockwise, the Bubbler can automatically switch from Slow to
Fast settings with the changes in your instrument's volume—softer
playing will keep the Bubbler set to your Slow settings; louder playing
will send the Bubbler ramping up to your Fast settings. Turn the
Sensitivity control fully counter-clockwise to disable this feature.